Finding the Fourth Proportional to 703,996.92, 971,455.68 and 398,058.30
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Solution
The fourth proportional to 703,996.92, 971,455.68 and 398,058.30 is: 549,286.49
Step by Step Solution
- Step 1: Write the proportion equation
703,996.92 : 971,455.68 = 398,058.30 : x - Step 2: Convert to fraction form
703,996.92/971,455.68 = 398,058.30/x - Step 3: Cross multiply
703,996.92x = 971,455.68 × 398,058.30 - Step 4: Simplify right side
703,996.92x = 386,695,996,506.14 - Step 5: Solve for x
x = 386,695,996,506.14/703,996.92 - Step 6: Final answer
x = 549,286.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.